Discontinued Operations (Details) (USD $)	1 Months Ended	3 Months Ended	6 Months Ended
	Jul. 31, 2010	Jun. 30, 2010	Jun. 30, 2010
Discontinued Operations
Income (loss) from discontinued operations, net of tax		$ 1,961,000	$ 2,615,000
Alcan Packaging Food Americas Disposal Group
Discontinued Operations
Number of facilities divested	2
Net proceeds from the sale of discontinued operations	75,200,000
Net sales from disposal group		36,073,000	48,393,000
Income (loss) before income taxes		3,061,000	4,115,000
Provision for income taxes		(1,100,000)	(1,500,000)
Income (loss) from discontinued operations, net of tax		$ 1,961,000	$ 2,615,000